SQLアンチパターン 26章「とりあえず削除フラグ」 2015/08/31 @ GMO Yours #ronsakucasual https://atnd.org/events/68902
![ヤフー社内でやってるMySQLチューニングセミナー大公開](https://cdn-ak-scissors.b.st-hatena.com/image/square/92b06f753d74bbf1f56a51c8f1c64cdd1d2d98d4/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Fmysqlsqltuningseminormynajpug201602-160222054211-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)
Zabbix is an open source network monitoring software that allows users to monitor networks, servers and other network hardware and services. It works by having Zabbix agents installed on devices that report data to a central Zabbix server. The server then stores and analyzes the data to trigger alerts if issues arise. Key features include autodiscovery of devices, low-level discovery, agent-less m
1. Log structured merge trees store data in multiple levels with different storage speeds and costs, requiring data to periodically merge across levels. 2. This structure allows fast writes by storing new data in faster levels before merging to slower levels, and efficient reads by querying multiple levels and merging results. 3. The merging process involves loading, sorting, and rewriting levels
This document discusses tuning HBase and HDFS for performance and correctness. Some key recommendations include: - Enable HDFS sync on close and sync behind writes for correctness on power failures. - Tune HBase compaction settings like blockingStoreFiles and compactionThreshold based on whether the workload is read-heavy or write-heavy. - Size RegionServer machines based on disk size, heap size,
Dockerをちゃんと使おうと考えていたらKubernetesに出会いました。ERPのシステム開発でkubernetesを使おうとして苦労した、あるいは現在進行形で苦労していることを、そもそもKubernetesが解決しようとしている課題やそのアーキテクチャそのものにも言及しながらお話します。Dockerをベースにシステム設計を行おうとしている方にノウハウ(主に苦労話)を共有します。 July 24th, 2016 July Tech Festa 2016Read less
This document outlines Netflix's culture of freedom and responsibility. Some key points: - Netflix focuses on attracting and retaining "stunning colleagues" through a high-performance culture rather than perks. Managers use a "Keeper Test" to determine which employees they would fight to keep. - The culture emphasizes values over rules. Netflix aims to minimize complexity as it grows by increasing
Visual Studio Users Community Japan #1 で発表した資料になります。 https://vsuc.connpass.com/event/143114/
1) Mercari has transitioned some services to microservices architecture running on Kubernetes in the US region to improve development velocity. 2) Key challenges in operating microservices include deployment automation using Spinnaker, and observability of distributed systems through request tracing, logging, and metrics. 3) The architecture is still evolving with discussions on service mesh and c
This document compares Apache Kafka and AWS Kinesis for message streaming. It outlines that Kafka is an open source publish-subscribe messaging system designed as a distributed commit log, while Kinesis provides streaming data services. It also notes some key differences like Kafka typically handling over 8000 messages/second while Kinesis can handle under 100 messages/second.
こちらのスライドは以下のサイトにて閲覧いただけます。 https://www.docswell.com/s/ockeghem/ZM6VNK-phpconf2021-spa-security シングルページアプリケーション(SPA)において、セッションIDやトークンの格納場所はCookieあるいはlocalStorageのいずれが良いのかなど、セキュリティ上の課題がネット上で議論されていますが、残念ながら間違った前提に基づくものが多いようです。このトークでは、SPAのセキュリティを構成する基礎技術を説明した後、著名なフレームワークな状況とエンジニアの技術理解の現状を踏まえ、SPAセキュリティの現実的な方法について説明します。 動画はこちら https://www.youtube.com/watch?v=pc57hw6haXk
OAuth2.0まとめ speakerdeck はこちら↓ https://speakerdeck.com/satot/jin-geng-wen-kenaioauth2-dot-0#Read less
[参考情報] 【永久保存版】OAuth 2.0 / OpenID Connect シーケンスまとめ URL:https://qiita.com/kura_lab/items/812a62b5aa3427bdb49d タイトル: 『OpenID Connect 入門 〜コンシューマー領域におけるID連携のトレンド〜』 概要: コンシューマー領域におけるID連携のトレンドであるOpenID Connectの概要と仕様のポイントについてご紹介します。 OpenID TechNight Vol.13 - ID連携入門 Aug. 26, 2015 URL:https://openid.doorkeeper.jp/events/29487Read less
WSO2Con US 2015 Kubernetes: a platform for automating deployment, scaling, and operations Kubernetes can run application containers on clusters of physical or virtual machines. It can also do much more than that. Kubernetes satisfies a number of common needs of applications running in production, such as co-locating helper processes, mounting storage systems, distributing secrets, application heal
https://atnd.org/events/87466 商品検索システムをSolrCloudへリプレースし性能を強化した後、データ解析基盤をBigQueryに移行してデータドリブンで機能面でも商品検索を改善してきたことについてお話します。 Read less
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